All-blade-coated flexible perovskite solar cells & modules processed in air from a sustainable dimethyl sulfoxide (DMSO)-based solvent system

Abstract

Flexible Perovskite solar cells have been considered promising candidates for novel applications that require a high power-to-weight ratio. However, the scalable and ambient air deposition of efficient devices are still...

Flexible, Transparent, and Bifacial Perovskite Solar Cells and Modules Using the Wide-Band Gap FAPbBr3 Perovskite Absorber

“…The minimodules we fabricated consist of two cells with a total active area of 2.9 cm 2 with the PET/ITO/SnO 2 /KCl/FAPbBr 3 /PTAA/ITO device architecture. The optimization of the laser parameters, including interconnection width and laser fluences, has been carried out starting from a previous optimization procedure: a matrix of laser power as a function of pulse densities has been implemented for each etching process, moving around the starting values optimized in our previous studies combining semitransparent and flexible substrates. , We minimized the losses on the P2 process by applying three couple of lines by differing by 200 pulse density each, keeping the power density constant for all cases: especially for the flexible substrate, the presence of valleys and hills at the microscopic level is unavoidable at the time of marking the lines, causing defocusing; therefore, the use of slightly different parameters helps to homogenize the ablation, fundamental to reduce losses at the interconnections . By reducing the scribe width and optimizing laser parameters, we attained 155 μm interconnection width (Figure S7), resulting in a geometrical fill factor of 97.83%.…”

Green solvents, materials, and lead-free semiconductors for sustainable fabrication of perovskite solar cells

“…84,93,115 Jafarzadeh et al used a two-step blade coating technique to deposit perovskite using DMSO as the solvent for the rst step. 116 They demonstrated that gas quenching in combination with additive engineering enables the deposition of perovskite on exible substrates under ambient conditions without the usage of high deposition temperature. The all-blade coated exible perovskite solar cells delivered 14% PCE.…”